1055903378 has 16 divisors (see below), whose sum is σ = 1668099840. Its totient is φ = 499899600.

The previous prime is 1055903377. The next prime is 1055903419. The reversal of 1055903378 is 8733095501.

It is a happy number.

It is a super-2 number, since 2×1055903378² = 2229863887343621768, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1055903377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78143 + ... + 90653.

It is an arithmetic number, because the mean of its divisors is an integer number (104256240).

Almost surely, 2^1055903378 is an apocalyptic number.

1055903378 is a deficient number, since it is larger than the sum of its proper divisors (612196462).

1055903378 is a wasteful number, since it uses less digits than its factorization.

1055903378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14753.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1055903378 is about 32494.6669162803. Note that the first 3 decimals coincide. The cubic root of 1055903378 is about 1018.2976146029.

Adding to 1055903378 its reverse (8733095501), we get a palindrome (9788998879).

The spelling of 1055903378 in words is "one billion, fifty-five million, nine hundred three thousand, three hundred seventy-eight".